Jose Mourinho felt let down by Manchester United's players, accusing them of ignoring his advice and treating the Europa League clash at Fenerbahce like a "summer friendly".

On the back of Saturday's frustrating goalless draw against Burnley and with a touchline ban looming at Swansea this weekend, any hopes the United boss had of a morale-boosting win in Istanbul was swiftly extinguished.

Moussa Sow's outrageous overhead kick after 65 seconds gave Fenerbahce a lead that Jeremain Lens, on loan from Sunderland, extended with a superb second-half free-kick.

"And my experience is that when you play against them in our home, it's easy. It's always 2-0, 3-0, 4-0, it's easy.

"You come to Turkey and it is completely different story, so I told them to wait for that, told them not to be focused on the easy game we had at Old Trafford and to be ready for a completely different game,

"We started the game sleeping. I know that we have a problem and especially away from home, it's difficult to play without two proper central defenders.

"Football play starts with goalkeeper, two strong central defenders. We are playing with two left-backs (Daley Blind and Marcos Rojo) as central defenders and poor Blind is even having to play central defender on the right, which is even more complicated.

"So I think at this moment we lack that structure there, but they start 100 miles per hour and we start really slowly.

Jeremain Lens scores his side's second goal (Image: Getty Images)

"They had the kick-off, they go immediately, the referee gives a free-kick. They take the free-kick in a fast way, we are sleeping, we don't react. Then it's a ball in the other side, we lose the second ball. Then the cross is coming, we don't mark Sow in the box and then the game is a different story.

"Then they are where they want to be. They are in front, then they can control the game, they can defend with a lot of bodies, they can wait for counter-attacks. They can simulate a few fouls, put some pressure on the referee, stop the game, win time, provoke some conflicts.

"But it is not their fault, it our fault that we let them be 1-0 in front.

"Then obviously when you are losing 2-0, the players had a reaction and they tried and probably they could (have equalised).